The Netflix TechBlog

SEPTEMBER 29, 2022

Timestone: Netflix’s High-Throughput, Low-Latency Priority Queueing System with Built-in Support for Non-Parallelizable Workloads by Kostas Christidis Introduction Timestone is a high-throughput, low-latency priority queueing system we built in-house to support the needs of Cosmos , our media encoding platform. Over the past 2.5

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Latency Systems Media Serverless 224

DZone

FEBRUARY 5, 2024

In the fast-paced digital world, where every millisecond counts, understanding the nuances of network latency becomes paramount for developers and system architects. Latency, the delay before a transfer of data begins following an instruction for its transfer, can significantly impact user experience and system performance.

Latency 147

Latency Metrics Network Systems 147

DZone

MAY 3, 2023

Welcome back to this series all about file uploads for the web. In the previous posts, we covered things we had to do to upload files on the front end, things we had to do on the back end, and optimizing costs by moving file uploads to object storage.

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Latency Speed Performance Storage 195

The Netflix TechBlog

NOVEMBER 9, 2022

A quick canary test was free of errors and showed lower latency, which is expected given that our standard canary setup routes an equal amount of traffic to both the baseline running on 4xl and the canary on 12xl. What’s worse, average latency degraded by more than 50%, with both CPU and latency patterns becoming more “choppy.”

Hardware 363

Hardware Cache Performance Latency 363

High Scalability

FEBRUARY 17, 2021

We note that for MongoDB update latency is really very low (low is better) compared to other dbs, however the read latency is on the higher side. The latency table shows that 99th percentile latency for Yugabyte is quite high compared to others (lower is better). Again Yugabyte latency is quite high. Conclusion.

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Benchmarking Latency C++ Database 308

Scalegrid

AUGUST 26, 2020

ScaleGrid MySQL on Azure so you can see which provider offers the best throughput and latency performance. We measure latency in ms 95th percentile latency. During Read-Intensive Workloads, ScaleGrid manages to achieve up to 3 times higher throughput and averages 66% better latency compared to Azure Database.

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Azure Benchmarking Database Latency 299

InfoQ

APRIL 26, 2024

Allegro experimented with different performance optimization options to improve Apache Kafka producer tail latency and eventually switched all its clusters to the XFS filesystem. The company used Kafka protocol sniffing, JVM profiling, and eBPF, which proved instrumental in identifying and eliminating performance bottlenecks.

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Latency Performance Tuning Design 114

CSS Wizardry

OCTOBER 16, 2023

Plotted on the same horizontal axis of 1.6s, the waterfalls speak for themselves: 201ms of cumulative latency; 109ms of cumulative download. 4,362ms of cumulative latency; 240ms of cumulative download. When we talk about downloading files, we—generally speaking—have two things to consider: latency and bandwidth. It gets worse.

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Cache Latency Strategy Speed 338

Scalegrid

APRIL 28, 2020

Does it affect latency? Yes, you can see an increase in latency. So, if you’re hosting your application in AWS or Azure and move your database to DigitalOcean, you will see an increase in latency. However, the average latencies between AWS US-East and the DigitalOcean New York datacenter locations are typically only 17.4

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Azure AWS Database Latency 344

The Netflix TechBlog

JANUARY 25, 2023

The service should be able to serve real-time, aka UI, applications so CRUD and search operations should be achieved with low latency. Our service will be used by a lot of internal UI applications hence the latency for CRUD and search operations must be low. Search latency for the generic text queries are in milliseconds.

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Scalability Latency Media Architecture 293

Scalegrid

JUNE 4, 2020

Compare Latency. lower latency compared to DigitalOcean for PostgreSQL. Now, let’s take a look at the throughput and latency performance of our comparison. Next, we are going to test and compare the latency performance between ScaleGrid and DigitalOcean for PostgreSQL. PostgreSQL DigitalOcean Latency Averages (ms).

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Database Latency Benchmarking Performance 230

Scalegrid

JUNE 22, 2020

Compare Latency. On average, ScaleGrid achieves almost 30% lower latency over DigitalOcean for the same deployment configurations. Now that we’ve compared throughput performance, let’s take a look at ScaleGrid vs. DigitalOcean latency for MySQL. Read-Intensive Latency Benchmark. Balanced Workload Latency Benchmark.

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Database Benchmarking Latency Performance 217

The Netflix TechBlog

SEPTEMBER 10, 2024

Continuous Instrumentation of the Linux Scheduler To ensure the reliability of our workloads that depend on low latency responses, we instrumented the run queue latency for each container, which measures the time processes spend in the scheduling queue before being dispatched to the CPU.

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Latency Metrics Programming Monitoring 251

DZone

SEPTEMBER 23, 2024

With the rise of microservices architecture , there has been a rapid acceleration in the modernization of legacy platforms, leveraging cloud infrastructure to deliver highly scalable, low-latency, and more responsive services. Why Use Spring WebFlux?

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Performance Latency Architecture Programming 287

The Netflix TechBlog

SEPTEMBER 18, 2024

These include challenges with tail latency and idempotency, managing “wide” partitions with many rows, handling single large “fat” columns, and slow response pagination. It also serves as central configuration of access patterns such as consistency or latency targets. Useful for keeping “n-newest” or prefix path deletion.

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Latency Storage Cache Efficiency 254

The Netflix TechBlog

MAY 4, 2023

It provides a good read on the availability and latency ranges under different production conditions. The upstream service calls the existing and new replacement services concurrently to minimize any latency increase on the production path. Logging is selective to cases where the old and new responses do not match.

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Traffic Latency Tuning Systems 349

DZone

AUGUST 28, 2024

Putting an external cache in front of the database is commonly used to compensate for subpar latency stemming from various factors, such as inefficient database internals, driver usage, infrastructure choices, traffic spikes, and so on. This is a clear performance-oriented decision.

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Cache Database Latency Traffic 278

DZone

MAY 1, 2023

CPU isolation and efficient system management are critical for any application which requires low-latency and high-performance computing. In modern production environments, there are numerous hardware and software hooks that can be adjusted to improve latency and throughput.

Tuning 253

Tuning Systems Latency Performance 253

Dynatrace

NOVEMBER 28, 2022

The new Amazon capability enables customers to improve the startup latency of their functions from several seconds to as low as sub-second (up to 10 times faster) at P99 (the 99th latency percentile). This can cause latency outliers and may lead to a poor end-user experience for latency-sensitive applications.

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Lambda AWS Serverless Latency 235

The Netflix TechBlog

NOVEMBER 12, 2024

By: Rajiv Shringi , Oleksii Tkachuk , Kartik Sathyanarayanan Introduction In our previous blog post, we introduced Netflix’s TimeSeries Abstraction , a distributed service designed to store and query large volumes of temporal event data with low millisecond latencies. Today, we’re excited to present the Distributed Counter Abstraction.

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Latency Cache Infrastructure Strategy 253

DZone

JULY 19, 2021

We want to make scale, availability and low latency access to data as easy as possible for everyone, and it’s all about where your data lives. CockroachDB was built to address these challenges and we’ve recently simplified a multi-region deployment of a consistent database down to a few simple, declarative SQL statements applied as DML.

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Latency Database Performance Availability 246

CSS Wizardry

AUGUST 7, 2019

The first—and often most surprising for people to learn—thing that I want to draw your attention to is that TTFB counts one whole round trip of latency. The reason is because mobile networks are, as a rule, high latency connections. Last mile latency deals with the disproportionate complexity toward the terminus of a connection.

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Latency Ecommerce Servers Mobile 271

Dynatrace

DECEMBER 27, 2022

According to Google’s SRE handbook , best practices, there are “ Four Golden Signals ” we can convert into four SLOs for services: reliability, latency, availability, and saturation. Latency is the time that it takes a request to be served. Define SLOs for each service. Reliability.

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Software Software Benchmarking Latency 276

InfoQ

DECEMBER 4, 2023

to HTTP2, resulting in a reduction in the number of connections, latency, and garbage collection times. LinkedIn was able to dramatically improve the scalability and performance of its Espresso database by migrating it from HTTP1.1 To achieve these gains, the team had to optimize the Netty’s default HTTP2 stack to make it fit their needs.

Latency 101

Latency Scalability Database Performance 101

DZone

AUGUST 20, 2023

Slow performance, or high latency, can lead to frustrated users and lost revenue for the organization. From a high level, application latency refers to the delay between the user's request and the application's response. Application performance is critical for delivering a fast and responsive user experience.

Performance 225

Performance Latency Efficiency Processing 225

Scalegrid

OCTOBER 24, 2019

As organizations continue to migrate to the cloud, it’s important to get in front of performance issues, such as high latency, low throughput, and replication lag with higher distances between your users and cloud infrastructure. ScaleGrid also maintains 53% lower latency on average throughout the entire MySQL AWS performance tests.

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AWS Latency Performance Performance Testing 183

The Netflix TechBlog

MARCH 5, 2024

Reduced tail latencies In both our GRPC and DGS Framework services, GC pauses are a significant source of tail latencies. For a given CPU utilization target, ZGC improves both average and P99 latencies with equal or better CPU utilization when compared to G1. There is no best garbage collector.

Latency 240

Latency Java Tuning Efficiency 240

Scalegrid

APRIL 23, 2021

Both Redis and Memcached are: NoSQL in-memory data structures Written in C Open source Used to speed up applications Support sub-millisecond latency In 2014, Salvatore wrote an excellent StackOverflow post on […]. Memcached, on the other hand, was created in 2003 by Brad Fitzpatrick.

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Open Source Latency C++ Speed 264

The Netflix TechBlog

JUNE 14, 2023

To determine customer impact, we could compare various metrics such as error rates, latencies, and time to render. The control group’s traffic utilized the legacy Falcor stack, while the experiment population leveraged the new GraphQL client and was directed to the GraphQL Shim. We then collect and analyze the performance of the two clusters.

Traffic 358

Traffic Latency Metrics Cache 358

Scalegrid

NOVEMBER 20, 2019

95th Percentile Latency. The 95th percentile latency of queries was also 1.8 Workload Throughput (Queries Per Second). Index Creation on Master. Rolling Index Creation. times higher when the index creation happened on the master server.

Best Practices 239

Best Practices Latency Tuning Database 239

DZone

JULY 2, 2024

We compare throughput, operations per second, and latency under different loads, namely the P90 and P99 percentiles. We have run these benchmarks on the AWS EC2 instances and designed a custom dataset to make it as close as possible to real application use cases.

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Scalability Performance Benchmarking Games 264

The Netflix TechBlog

NOVEMBER 3, 2022

In that scenario, the system would need to deal with the data propagation latency directly, for example, by use of timeouts or client-originated update tracking mechanisms. We started seeing increased response latencies and leader servers running at dangerously high utilization. The query rate in this test is set to 1K requests/second.

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Cache Latency Traffic Systems 235

The Netflix TechBlog

OCTOBER 8, 2024

Rajiv Shringi Vinay Chella Kaidan Fullerton Oleksii Tkachuk Joey Lynch Introduction As Netflix continues to expand and diversify into various sectors like Video on Demand and Gaming , the ability to ingest and store vast amounts of temporal data — often reaching petabytes — with millisecond access latency has become increasingly vital.

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Latency Storage Traffic Tuning 242

The Netflix TechBlog

MARCH 1, 2021

It supports both high throughput services that consume hundreds of thousands of CPUs at a time, and latency-sensitive workloads where humans are waiting for the results of a computation. The subsystems all communicate with each other asynchronously via Timestone, a high-scale, low-latency priority queuing system. Warm capacity.

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Serverless Media Latency Social Media 236

CSS Wizardry

MAY 31, 2019

Every new origin we need to visit needs a connection opening, and that can be very costly: DNS resolution, TCP handshakes, and TLS negotiation all add up, and the story gets worse the higher the latency of the connection is. On a slower, higher-latency connection, the story is much, mush worse. All completely avoidable. to just 3.6s.

Cache 275

Cache Latency Infrastructure Website 275

DZone

NOVEMBER 25, 2023

Factors like read and write speed, latency, and data distribution methods are essential. Here, let's shift gears and examine how making a strategic choice in your NoSQL database can redefine the very essence of your business — scaling, market agility, and competitive advantage.

Database 278

Database Latency Speed Metrics 278

DZone

NOVEMBER 16, 2023

A dependency can become unhealthy or unavailable for various reasons, such as network failures, high latency, timeouts, errors, or overload. A circuit breaker is a component that monitors the health of a dependency, such as a remote service, an external API, or a database.

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Latency Network Database Monitoring 264